/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Easy dialing test application.

*

*/

#ifndef __EDTA_SCREENTEXTBUFFER_H__

#define __EDTA_SCREENTEXTBUFFER_H__

// INCLUDES

#include <coecntrl.h>

#include <eiklabel.h>

#include <coecntrl.h>

#include <gdi.h>

#include <eiksbobs.h>

// FORWARD DECLARATIONS

class CEikScrollBarFrame;

class CFont;

class TBidiText;

class CAknsBasicBackgroundControlContext;

// CONSTANTS

const TInt KEdtaMaxLineWidth = 200;

// CLASS DECLARATION

class CEdtaScreenTextBuffer : public CCoeControl, public MEikScrollBarObserver

    {

public:

    static CEdtaScreenTextBuffer* NewL( const TRect& aRect );

    static CEdtaScreenTextBuffer* NewLC( const TRect& aRect );

public:

    CEdtaScreenTextBuffer();

    ~CEdtaScreenTextBuffer();

    void ConstructL( const TRect& aRect );

    void HandleResourceChange(TInt aType);

    void WriteLineL( TRefByValue<const TDesC> aText,... ); // text wrapping, was: const TDesC& aText

    void DeleteLastLine(TInt aCount = 1);

    TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aModifiers );

protected:

    virtual void FocusChanged(TDrawNow aDrawNow);

private:

    void SizeChanged();

    void Draw( const TRect& aRect ) const;

    void ActivateL();

    void HandleScrollEventL ( CEikScrollBar* aScrollBar, TEikScrollEvent aEventType);

    TTypeUid::Ptr MopSupplyObject(TTypeUid aId);

private:

    void CalculateL(const TRect& aRect);

    void UpdateScrollIndicatorL();

private: // Data

    CArrayPtr<HBufC>* iText;

    CArrayFixFlat<TInt>* iScreenStarts;

    TInt iCurrentScreen;

    TBool iDoNotShowLastLineAgain;

    CGraphicsContext::TTextAlign iTextAlign;

    CEikScrollBarFrame* iSBFrame;

    const CFont* iFont; // not owned

    TInt iLineWidth;

    TInt iBaseLineDelta;

    TInt iTopBaseLineX;

    TInt iTopBaseLineY;

    TInt iLinesPerScreen;

    };

#endif // __EDTA_SCREENTEXTBUFFER_H__

// End of File